Item No. 1 is the operating expense.

WSJ: Calculating the Costs of Investing in ETFs

Answer: A -- Paper is by far the No. 1 item Americans dispose of.

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Or it will be Obama's No. 1 agenda item if he is elected.

CNN: Commentary: McCain has his priorities straight

Amazon.com is advertising the Kindle as the No. 1 "best- selling, most wished for and most gifted item" on its Web site.

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